Electromagnetic valve casting mold and casting process thereof

Abstract

The invention discloses an electromagnetic valve casting mold and a casting process thereof. An electromagnetic valve mud core is formed by assembling of a runner lever component and lateral flow channel components; the runner lever component consists of a main hole and three paths of flow channels; each lateral flow channel component consists of main holes on the two sides, flow channels on the side surfaces and main hole outlets in the two ends; the runner lever component and the lateral flow channel components are positioned and connected by a mud core head; joint parts of the main holes are flat openings; a connecting bottom plate of the runner lever component is provided with square mud core convex heads; connecting bottom plates of the lateral flow channel components are provided with square embedding openings; the square embedding openings and the square mud core convex heads form tight-matching connection. The mold and the casting process disclosed by the invention have the advantages that the accuracy of the mud core is high, the exhaust of the mud core is smooth, a flow channel of the casting mold is smooth, and the flow channel can be cleaned conveniently and the like.

Description

[0001] technical field [0002] The invention relates to a casting mold of an electromagnetic valve and a casting process thereof in the field of casting. Background technique [0003] In the field of mechanical manufacturing, metal parts with complex structures are mostly produced by casting technology. The solenoid valve castings of this patent are made of clay core models because of their complex structures and difficulty in demoulding in conventional casting. At present, it is common in the hydraulic industry that the cleanliness of the inner runners of such products is poor, the cleaning is labor-intensive and time-consuming, and the ideal effect and requirements cannot be achieved. In addition, the dimensional accuracy of the runners is unstable. Since the inner cavity cannot be formed at one time, the inner flow channel of the product must be formed through the assembly of the mud core, which inevitably has the problems of assembly accuracy and joint drape. There are...

AI Technical Summary

Problems solved by technology

At present, in the hydraulic industry, there is a common phenomenon in the hydraulic industry that the cleanliness of the inner runners of such products is poor, and the cleaning is labor-intensive and time-consuming, and the ideal effect and requirements cannot be achieved. In addition, the dimensional accuracy of the runners is unstable.

Since the inner cavity cannot be formed at one time, the inner flow channel of the product must be formed through the assembly of the mud core, and there are bound to be problems of assembly accuracy and joint draping

There are two traditional processes; one is assembled through the central hole, and the "T" cavity flow channel on the side is formed at one time. The coaxiality is not good, and the dimensional accuracy of the runner gear is difficult to control

The other is the side runner assembly. Advantages: high precision of the main hole, smooth exhaust of the mud core, reducing the occurrence of casting pores. Disadvantages: it is difficult to clean the side runner assembly interface twice (that is, after the casting is formed). It is easy to produce defects such as draped seams, sticky sand and irregular joints

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